package lab02.test02;

import java.util.Scanner;

public class Test02 {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        System.out.println("请输入半径：");
        double r = sc.nextDouble();

        Circle cicle = new Circle();

        cicle.setR(r);

        System.out.println(cicle.toString());
    }
}
